121202122112112 has 40 divisors (see below), whose sum is σ = 313784669777040. Its totient is φ = 40313070254080.

The previous prime is 121202122112069. The next prime is 121202122112207. The reversal of 121202122112112 is 211211221202121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2738637537 + ... + 2738681792.

It is an arithmetic number, because the mean of its divisors is an integer number (7844616744426).

Almost surely, 2^{121202122112112} is an apocalyptic number.

121202122112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121202122112112 is an abundant number, since it is smaller than the sum of its proper divisors (192582547664928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121202122112112 is a wasteful number, since it uses less digits than its factorization.

121202122112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477319801 (or 5477319795 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121202122112112 its reverse (211211221202121), we get a palindrome (332413343314233).

Subtracting 121202122112112 from its reverse (211211221202121), we obtain a palindrome (90009099090009).

The spelling of 121202122112112 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twelve".